The Collaborative International Dictionary of English v.0.48:
Argentiferous \Ar`gen*tif"er*ous\, a. [L. argentum silver + -ferous: cf. F. argentif[`e]re.] Producing or containing silver; as, argentiferous lead ore or veins. [1913 Webster]WordNet (r) 3.0 (2006):
argentiferous adj 1: containing or yielding silver; "argentiferous ore"